3results about How to "Various control methods" patented technology

The utility model discloses a multi-element accurate proportioning low-temperature brimstone furnace control system, which mainly comprises a central controller, and a data acquisition unit, a fan driving unit, a molten sulfur control unit, a metering pump control unit, an atomization control unit, an ignition control unit, a hearth positive and negative pressure protection unit and a brimstone furnace high and low temperature protection unit which are connected with and controlled by the central controller. The sulfur combustion furnace system automatically and accurately distributes air and sulfur according to the squeezing amount or the flow, the stoving intensity and the like, and the problems that due to the fact that an existing sulfur combustion furnace system is inaccurate in air distribution and sulfur distribution, combustion is insufficient, sublimed sulfur is much, and technological indexes are unstable are solved.

The application provides a traffic signal lamp intelligent regulation system, and relates to the technical field of traffic regulation.The system comprises a traffic information collection unit and an upper computer software system;by fusing modern frontier technologies such as the Internet of Things, big data and geomagnetic field measurement, and combining scientific theories such as automatic control theory, operations research and artificial intelligence, a traffic signal lamp self-adaptive control system based on period time expansion is constructed, and the green light release time is automatically adjusted according to the real-time arrival condition of the traffic flow at the intersection.

The present application relates to rectification technical field, particularly to a kind of rectification tower system balance full-automatic separation control method, rectification tower system includes rectification I tower, control method includes to rectification I tower is carried out material balance control and gas-liquid equilibrium control, gas-liquid equilibrium control is used to control the amount of backflow of material backflow to rectification I tower;The material balance control includes: detecting the actual feed flow of rectification I tower and the actual liquid level value of the first reflux tank corresponding to rectification I tower, in combination with the overhead take-off component set point of rectification I tower and the overhead take-off component density, the overhead take-off material flow of rectification I tower is calculated and controlled in real time.By the method, the stability and efficiency of rectification tower system are improved, and the energy consumption cost and the volatility problem of product are reduced.